troldesh | 7e1a9ef17a31bf84d52ce0c39ba9f052e6e46719a4076174e67c40bf9058e6b1

Analysis

max time kernel
89s
max time network
203s
platform
windows7_x64
resource
win7-20220718-en
resource tags

arch:x64arch:x86image:win7-20220718-enlocale:en-usos:windows7-x64system
submitted
31-07-2022 07:17

Sharing

Copy URL

Twitter E-mail

Report Analysis Logs

General

Target

7e1a9ef17a31bf84d52ce0c39ba9f052e6e46719a4076174e67c40bf9058e6b1.exe
Size

945KB
MD5

25b03120653f77c9f68de686aab82822
SHA1

cb9782b6f7c0f897bfa6ce7b94bce026f63d1b49
SHA256

7e1a9ef17a31bf84d52ce0c39ba9f052e6e46719a4076174e67c40bf9058e6b1
SHA512

1f9eab1a9d7434eb31b271040e6360fa41af2a81e1fb35fb56cb600d73a2d04a9325619935d68532dc0a9aac363cbe592fd65679172cc5ad6a19cfc71ca78b02

Score

10^/10

troldesh discovery persistence ransomware trojan upx

Malware Config

Signatures

Troldesh, Shade, Encoder.858
Troldesh is a ransomware spread by malspam.
ransomware trojan troldesh

UPX packed file 3 IoCs

Detects executables packed with UPX/modified UPX open source packer.

upx

resource	yara_rule
behavioral1/memory/1948-56-0x0000000000400000-0x0000000000608000-memory.dmp	upx
behavioral1/memory/1948-57-0x0000000000400000-0x0000000000608000-memory.dmp	upx
behavioral1/memory/1948-59-0x0000000000400000-0x0000000000608000-memory.dmp	upx

Adds Run key to start application 2 TTPs 2 IoCs

persistence

Registry Run Keys / Startup Folder

T1060

Modify Registry

T1112

description	ioc	Process
Key created	\REGISTRY\USER\S-1-5-21-3762437355-3468409815-1164039494-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\	7e1a9ef17a31bf84d52ce0c39ba9f052e6e46719a4076174e67c40bf9058e6b1.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-3762437355-3468409815-1164039494-1000\Software\Microsoft\Windows\CurrentVersion\Run\Client Server Runtime Subsystem = "\"C:\\ProgramData\\Windows\\csrss.exe\""	7e1a9ef17a31bf84d52ce0c39ba9f052e6e46719a4076174e67c40bf9058e6b1.exe

Checks installed software on the system 1 TTPs
Looks up Uninstall key entries in the registry to enumerate software on the system.
discovery

Query Registry
T1012
Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s). Likely ransomware behaviour.

System Information Discovery
T1082

Suspicious behavior: EnumeratesProcesses 2 IoCs

pid	Process
1948	7e1a9ef17a31bf84d52ce0c39ba9f052e6e46719a4076174e67c40bf9058e6b1.exe
1948	7e1a9ef17a31bf84d52ce0c39ba9f052e6e46719a4076174e67c40bf9058e6b1.exe

Suspicious use of UnmapMainImage 1 IoCs

pid	Process
1948	7e1a9ef17a31bf84d52ce0c39ba9f052e6e46719a4076174e67c40bf9058e6b1.exe

C:\Users\Admin\AppData\Local\Temp\7e1a9ef17a31bf84d52ce0c39ba9f052e6e46719a4076174e67c40bf9058e6b1.exe
"C:\Users\Admin\AppData\Local\Temp\7e1a9ef17a31bf84d52ce0c39ba9f052e6e46719a4076174e67c40bf9058e6b1.exe"
1⤵
- Adds Run key to start application
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of UnmapMainImage
PID:1948

Network

MITRE ATT&CK Enterprise v6

Initial Access

Execution

Persistence

Registry Run Keys / Startup Folder

T1060

Privilege Escalation

Defense Evasion

Modify Registry

T1112

Credential Access

Discovery

Query Registry

T1012

System Information Discovery

T1082

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

Loading Replay Monitor...

Downloads

memory/1948-54-0x00000000756C1000-0x00000000756C3000-memory.dmp

Filesize
8KB

Download
memory/1948-55-0x0000000000610000-0x00000000006E5000-memory.dmp

Filesize
852KB

Download
memory/1948-56-0x0000000000400000-0x0000000000608000-memory.dmp

Filesize
2.0MB

Download
memory/1948-57-0x0000000000400000-0x0000000000608000-memory.dmp

Filesize
2.0MB

Download
memory/1948-58-0x0000000000610000-0x00000000006E5000-memory.dmp

Filesize
852KB

Download
memory/1948-59-0x0000000000400000-0x0000000000608000-memory.dmp

Filesize
2.0MB

Download